The DAH may carry out a complete check of the supplier data, or may choose to rely, in whole or in part, on the supplier’s process. In the latter case, the DAH will propose a means to validate the supplier’s process. Supplier data may also be issued by the supplier to the DAH under a contract or an arrangement, addressing the following:
(a) the accuracy and the adequacy of the technical documentation, which should be checked through a verification processes (e.g. component workshop verification);
(b) evidence showing that workshop verification was performed should be kept by the supplier and a clear statement should be given in the introduction to the supplier data as a confirmation that component verification is complete;
(c) evidence that the supplier has taken into account all justified feedback and changes to data requested by any person required to use the ICA; typical examples would be the correction of reported errors, or mistakes.
In addition, some validation activities may be decided by the DAH, depending on the articles and the capability level of the supplier.
For articles subject to an ETSO authorisation, the validation of the supplier’s process is not needed. This is also valid for other national TSO authorisations (e.g. FAA TSOs) accepted by EASA as stipulated in related bilateral agreements.
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